BERtech Innovation

Our service

Serving Mayo, Sligo, Galway, Leitrim, and Roscommon, we specialize in a range of essential energy assessments, enabling you to make informed decisions and enhance your home’s energy efficiency.

Our mission is to empower you on your journey toward a warm, comfortable, and energy-efficient home. Let us assist you in making the right choices for your energy upgrades.

Eamon ORiordan BER

Building Energy Ratings

As an integral step in the SEAI grant process for solar PV or insulation upgrades, we conduct post-work building energy ratings to ensure your project’s successful completion.

Heat Pump Technical Assessments

We offer expert evaluations to support your application for the SEAI Heat Pump Grant, ensuring a smooth and successful process.


Home Energy Assessments

We collaborate with SEAI-registered One-Stop Shops to generate the crucial Home Energy Assessment (HEA) report necessary for the process. This report serves as your roadmap, guiding you towards the most effective measures to achieve your desired home energy outcomes.

About Us

BERtech Innovation Ltd. was founded by John Barrett. As a Chartered Engineer, BER Assessor, and Technical Advisor with over two decades of experience in the Irish construction industry, John brings a wealth of knowledge and expertise to the table. His journey in construction has encompassed a wide range of areas, but it was in the realms of construction quality, compliance and energy efficiency that he discovered his true passion. Engaged and motivated by his findings, John observed the challenges homeowners faced when making decisions about energy upgrades and navigating the sea of available information. At BERtech Innovation, our mission is clear, we’re dedicated to assisting homeowners in achieving their desired outcomes while simplifying the process. We’re here to make your journey towards a more energy-efficient home as hassle-free as possible.

Customers reviews

What people say?

John did a BER review of our house near Sligo, which we needed after we got our solar panels installed. John was very helpful not just in explaining the detailed report, but also took time to explain what other improvements would be beneficial for us and which were not. Overall a very professional and enjoyable experience - we learnt quite a lot!
Olaf Springer
John completed the BER assessment for our house in Dromahair. He was very thorough and explained what was assessed and what our options were regarding improving the energy efficiency. I would highly recommend his services.
Enda Gibney
Bertech completed a BER assessment and technical advice for a home energy upgrade, I would highly recommend this service for their advice and expertise which certainly made the project a lot easier to complete.
Helen Beirne
John was very helpful and professional. Anytime I had a question I knew I could ring him and he was happy to answer anything question I had.
Nigel Madden

In the long history of humankind those who learned to collaborate and improvise most effectively have prevailed”

Charles darwin

Ireland's First BER App

Understand the Dwelling Energy Assessment Procedure (DEAP), its associated survey & methodology

Understand the evidence required to support inputs into the DEAP calculation

Quick and easy access to the resources you need. App

What can do for you?


Connect with the professionals who have the expertise in their field to deliver for your project


Join a community of like minded people who have energy efficiency at the core of what they do


We provide a platform to promote your business, products and expertise by creating a profile with links to your website & social media accounts


The aim of the App is to provide BER assessors,  designers, contractors & suppliers with an efficient method of referencing the technical information contained in the DEAP manual & associated documents.

CPD & Training

Learning has moved online. Promote your companies training courses or create content and share your knowledge and expertise using the social media groups


Find answers to the technical issues by asking questions or sharing information using the groups & resources.

Contact us

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